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Finding the Fourth Proportional to 340,785.90, 470,008.98 and 327,007.80

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Solution

The fourth proportional to 340,785.90, 470,008.98 and 327,007.80 is: 451,006.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,785.90 : 470,008.98 = 327,007.80 : x
  2. Step 2: Convert to fraction form
    340,785.90/470,008.98 = 327,007.80/x
  3. Step 3: Cross multiply
    340,785.90x = 470,008.98 × 327,007.80
  4. Step 4: Simplify right side
    340,785.90x = 153,696,602,530.04
  5. Step 5: Solve for x
    x = 153,696,602,530.04/340,785.90
  6. Step 6: Final answer
    x = 451,006.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.